Shoe upper



FIG. 1 is a front perspective view of a shoe upper showing my new design;

FIG. 2 is a front view thereof; and,

FIG. 3 is a second front perspective view thereof.

The uneven-length broken lines showing a portion of a foot and leg are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a shoe upper, as shown and described. 